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Pochopien M, Tytuła A, Toumi M, Falk A, Martone N, Hakimi Z, Eriksson D. Cost-Effectiveness of Recombinant Factor IX Fc Prophylaxis and Recombinant Factor IX On-Demand Treatment in Patients with Haemophilia B Without Inhibitors. Adv Ther 2024; 41:2307-2323. [PMID: 38652439 PMCID: PMC11133064 DOI: 10.1007/s12325-024-02841-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 03/11/2024] [Indexed: 04/25/2024]
Abstract
INTRODUCTION Recombinant factor IX (rFIX) and recombinant FIX Fc fusion protein (rFIXFc) are standard half-life and extended half-life FIX replacement therapies, respectively, and represent established treatment options indicated for adults and children with haemophilia B. These FIX replacement therapies can be administered as prophylaxis (to prevent bleeding) or 'on-demand' (to stop bleeding). This analysis aimed to estimate the cost-effectiveness of once-weekly prophylaxis with rFIXFc versus on-demand treatment with rFIX in patients with haemophilia B without inhibitors in the Italian healthcare setting. METHODS A Markov model was developed to assess a hypothetical cohort of adolescent or adult male patients (≥ 12 years) with haemophilia B (FIX level of ≤ 2 IU/dL) without inhibitors. Model inputs were derived from the pivotal phase 3 clinical studies for rFIXFc and rFIX, published literature and assumptions when published data were unavailable. The model employed a lifelong time horizon with 6-monthly transitions between health states, and it estimated total costs, total quality-adjusted life years (QALYs), number of bleeds, number of surgeries and incremental cost-effectiveness ratio. RESULTS rFIXFc prophylaxis was associated with lower total costs per patient (€5,308,625 versus €6,564,510) and greater total QALYs per patient (15.936 versus 11.943) compared with rFIX on-demand; rFIXFc prophylaxis was therefore the dominant treatment strategy. The model also demonstrated that rFIXFc prophylaxis was associated with fewer incremental bleeds (- 682.29) and surgeries (- 0.39) compared with rFIX on-demand. CONCLUSIONS rFIXFc prophylaxis provides improved health outcomes and lower costs, and represents a cost-effective treatment option compared with rFIX on-demand for adolescent and adult male patients with haemophilia B. This comparative assessment of cost-effectiveness should help to inform both clinicians and healthcare policy makers when making treatment decisions for patients with haemophilia B.
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Affiliation(s)
| | - Anna Tytuła
- Health Economics and Outcomes Research Department, Putnam PHMR, Kraków, Poland
| | - Mondher Toumi
- Department of Public Health, Aix-Marseille University, Marseille, France
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Álvarez-Román MT, Shapiro AD, Ragni MV, Palmborg H, Bystrická L, Szamosi J, Casiano S, Chambost H. Long-term outcomes of prophylaxis with a recombinant factor VIII Fc or recombinant factor IX Fc in patients with hemophilia previously treated on demand. Res Pract Thromb Haemost 2023; 7:102163. [PMID: 37720484 PMCID: PMC10502440 DOI: 10.1016/j.rpth.2023.102163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/17/2023] [Accepted: 07/26/2023] [Indexed: 09/19/2023] Open
Abstract
Background Prophylactic factor replacement therapy is recommended over on-demand treatment for preserving long-term joint health in hemophilia. Extended half-life products, including efmoroctocog alfa/eftrenonacog alfa (recombinant factor VIII [FVIII]/FIX Fc fusion proteins; herein rFVIIIFc/rFIXFc), have the potential to reduce treatment burden with less frequent administration and improve bleed prevention. Objectives We report post hoc data from patients with hemophilia A or B (HA/HB) who switched from prestudy on-demand FVIII/FIX to rFVIIIFc/rFIXFc prophylaxis at the start of A-LONG/B-LONG or start of/during ASPIRE/B-YOND phase 3 studies. Methods Patients with ≥6 months rFVIIIFc/rFIXFc prophylaxis were enrolled. Treatment exposure, dosing, annualized bleeding rates, joint health, and health-related quality of life (HRQoL) outcomes were assessed. Results were also stratified by age. Results Sixty-seven patients with HA and 50 with HB were analyzed; ≥60% were from regions outside Europe/North America, predominately those aged 12 to 25 years. No subjects returned to on-demand treatment postswitch.After switch to rFVIIIFc/rFIXFc prophylaxis, median annualized bleeding rates were reduced and sustained at low levels with stable factor usage across age groups (median treatment duration: 4.8/3.6 years). HRQoL outcomes improved for all ages; most pronounced changes were in the sports and leisure and physical health domains. After switch to rFVIIIFc prophylaxis, total modified Hemophilia Joint Health Score and joints with pain decreased in 64.6% and 29.2% of patients with HA. Insufficient data from patients with HB limited joint health evaluation of rFIXFc. Conclusions Findings add to existing evidence and demonstrate the clinical and HRQoL benefits of switching patients from on-demand treatment to rFVIIIFc/rFIXFc prophylaxis.
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Affiliation(s)
| | - Amy D. Shapiro
- Indiana Hemophilia and Thrombosis Center, Indianapolis, Indiana, USA
| | - Margaret V. Ragni
- Department of Medicine, Division of Hematology/Oncology, University of Pittsburgh, and Hemophilia Center of Western PA, Pittsburgh, Pennsylvania, USA
| | | | | | | | | | - Hervé Chambost
- AP-HM, Paediatric Haematology Department, Children’s Hospital La Timone and Aix Marseille University, C2VN, Marseille, France
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Castaman G, Carulli C, De Cristofaro R, Follino M, Lupi A, Mancuso ME, Mansueto MF, Molinari AC, Pasquetti P, Santoro C, Santoro RC, Siragusa S, Solimeno LP, Tripodi A, Zanon E, Minno GD. Laying the foundations for gene therapy in Italy for patients with haemophilia A: A Delphi consensus study. Haemophilia 2023; 29:435-444. [PMID: 36469855 DOI: 10.1111/hae.14709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 10/24/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Current treatment for haemophilia A involves factor VIII replacement or non-replacement (emicizumab) therapies, neither of which permanently normalise factor VIII levels. Gene therapy using adeno-associated viral (AAV) vectors is an emerging long-term treatment strategy for people with severe haemophilia A (PwSHA) that is likely to be available for clinical use in the near future. AIM This article proposes practical guidelines for the assessment, treatment, and follow-up of potential PwSHA candidates for AAV-based gene therapy. METHOD Using the Delphi method, a working group of Italian stakeholders with expertise in and knowledge of the care of adults with haemophilia A analysed literature for AAV-based gene therapy and drafted a list of statements that were circulated to a panel of Italian peers. During two rounds of voting, panel members voted on their agreement with each statement to reach a consensus. RESULTS The Delphi process yielded 40 statements regarding haemophilia A gene therapy, across five topics: (1) organisational model; (2) multidisciplinary team; (3) patient engagement; (4) laboratory surveillance; and (5) patient follow-up and gene therapy outcomes. The consensus was reached for all 40 statements, with the second round of voting needed for five statements. CONCLUSION Use of the hub-and-spoke organisational model and multidisciplinary teams are expected to optimise patient selection for gene therapy, as well as the management of dosing and patient follow-up, patient engagement, laboratory surveillance, and patient expectations regarding outcomes. This approach should allow the benefits of AAV-based gene therapy for haemophilia A to be maximised.
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Affiliation(s)
- Giancarlo Castaman
- Center for Bleeding Disorders and Coagulation, Department of Oncology, Careggi University Hospital, Florence, Italy
| | | | - Raimondo De Cristofaro
- Section of Haemorrhagic and Thrombotic Diseases, Department of Diagnostic Imaging, Oncological Radiotherapy and Haematology, IRCCS A. Gemelli University Polyclinic Foundation, Rome, Italy.,Department of Medicine and Translational Surgery, Sacred Heart University, Rome, Italy
| | | | - Angelo Lupi
- Federation of Haemophilia Associations (FedEmo), Milan, Italy
| | - Maria Elisa Mancuso
- Center for Thrombosis and Hemorrhagic Diseases, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Maria Francesca Mansueto
- "P. Giaccone" University Hospital, University of Palermo Haemophilia Centre and Haematology Unit, Palermo, Italy
| | - Angelo Claudio Molinari
- Regional Reference Centre for Haemorrhagic Diseases, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Pietro Pasquetti
- Recovery and Rehabilitation Agency, University Hospital of Careggi, Florence, Italy
| | - Cristina Santoro
- Division of Haematology, Umberto I University Hospital, Rome, Italy
| | - Rita Carlotta Santoro
- Haemophilia, Haemostasis and Thrombosis Unit, Regional Reference Centre for Bleeding and Thrombosis Disorders, Pugliese-Ciaccio Hospital, Catanzaro, Italy
| | - Sergio Siragusa
- "P. Giaccone" University Hospital, University of Palermo Haemophilia Centre and Haematology Unit, Palermo, Italy
| | - Luigi Piero Solimeno
- Division of Orthopaedic Surgery and Traumatology, Foundation IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Armando Tripodi
- Angelo Bianchi Bonomi Haemophilia and Thrombosis Center, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Ezio Zanon
- Haemophilia Centre, Department of Medicine, University Hospital of Padua, Padua, Italy
| | - Giovanni Di Minno
- Department of Clinical Medicine and Surgery, "Federico II University; Hub" Centre for Congenital Thrombotic and Haemorrhagic Disorders, Naples, Italy
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Cuesta-Barriuso R, Donoso-Úbeda E, Meroño-Gallut J, Ucero-Lozano R, Pérez-Llanes R. Hemophilic Arthropathy: Barriers to Early Diagnosis and Management. J Blood Med 2022; 13:589-601. [PMID: 36277171 PMCID: PMC9586168 DOI: 10.2147/jbm.s343924] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 09/29/2022] [Indexed: 11/05/2022] Open
Abstract
Hemophilia is a congenital coagulopathy characterized by a deficiency of one of the clotting factors. It is characterized by the development of hematomas and hemarthrosis, either spontaneously or after minor trauma. The recurrence of hemarthroses leads to progressive and degenerative joint damage from childhood (hemophilic arthropathy). This arthropathy is characterized by disabling physical effects that limit the functionality and quality of life of these patients. Medical progress achieved over the last decade in the drug treatment of hemophilia has improved the medium and long-term prospects of patients with more effective and long-lasting drugs. The universal use of safer, more effective and prolonged prophylactic treatments may promote the prevention of bleeding, and also therefore, of the development of hemarthrosis and joint damage. A number of imaging instruments have been developed for the assessment of hemarthrosis and hemophilic arthropathy, using ultrasound, magnetic resonance imaging and simple radiology. Different physical examination scores and questionnaires allow the assessment of joint health, self-perceived activity and functionality of patients with hemophilia. The approach to these patients should be interdisciplinary. Assessment of the processes that affect pain in these patients and the development of pain education models should be implemented. Expert advice and information to patients with hemophilia should be based on individual functional prevention diagnoses, advice on available therapies and sports practice, as well as health recommendations.
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Affiliation(s)
- Rubén Cuesta-Barriuso
- Department of Surgery and Medical-Surgical Specialties, University of Oviedo, Oviedo, Spain,Royal Victoria Eugenia Foundation, Madrid, Spain,Correspondence: Rubén Cuesta-Barriuso, Department of Surgery and Medical-Surgical Specialties, University of Oviedo, Campus de El Cristo s/n, Faculty of Medicine, Oviedo, 33006, Spain, Tel +34 985 103 386, Email
| | - Elena Donoso-Úbeda
- Department of Physiotherapy, Catholic University San Antonio-UCAM, Murcia, Spain
| | | | | | - Raúl Pérez-Llanes
- Department of Physiotherapy, Catholic University San Antonio-UCAM, Murcia, Spain
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Castaman G, Di Minno G, De Cristofaro R, Peyvandi F. The Arrival of Gene Therapy for Patients with Hemophilia A. Int J Mol Sci 2022; 23:10228. [PMID: 36142153 PMCID: PMC9499514 DOI: 10.3390/ijms231810228] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/01/2022] [Accepted: 09/03/2022] [Indexed: 11/16/2022] Open
Abstract
Historically, the standard of care for hemophilia A has been intravenous administration of exogenous factor VIII (FVIII), either as prophylaxis or episodically. The development of emicizumab, a humanized bispecific monoclonal antibody mimicking activated FVIII, was a subsequent advance in treatment. However, both exogenous FVIII and emicizumab require repeated and lifelong administration, negatively impacting patient quality of life. A recent breakthrough has been the development of gene therapy. This allows a single intravenous treatment that could result in long-term expression of FVIII, maintenance of steady-state plasma concentrations, and minimization (or possibly elimination) of bleeding episodes for the recipient's lifetime. Several gene therapies have been assessed in clinical trials, with positive outcomes. Valoctocogene roxaparvovec (an adeno-associated viral 5-based therapy encoding human B domain-deleted FVIII) is expected to be the first approved gene therapy in European countries, including Italy, in 2022. Some novel challenges exist including refining patient selection criteria, managing patient expectations, further elucidation of the durability and variability of transgene expression and long-term safety, and the development of standardized 'hub and spoke' centers to optimize and monitor this innovative treatment. Gene therapy represents a paradigm shift, and may become a new reference standard for treating patients with hemophilia A.
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Affiliation(s)
- Giancarlo Castaman
- Center for Bleeding Disorders, Department of Oncology, Careggi University Hospital, Largo Brambilla 3, 50134 Firenze, Italy
| | - Giovanni Di Minno
- Regional Reference Centre for Hemo-Coagulation Diseases, Federico II University, Via S. Pansini 5, 80131 Naples, Italy
| | - Raimondo De Cristofaro
- Servizio Malattie Emorragiche e Trombotiche, Dipartimento di Medicina e Chirurgia Traslazionale, Fondazione Policlinico Universitraio “A. Gemelli” IRCCS, Università Cattolica S. Cuore Roma, Largo Francesco Vito, 1, 00168 Rome, Italy
| | - Flora Peyvandi
- Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, Fondazione Luigi Villa, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Via Pace 9, 20122 Milan, Italy
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Ransmann P, Krüger S, Hilberg T, Hagedorn T, Roussel N. Prevalence of pain in adult patients with moderate to severe haemophilia: a systematic review. Scand J Pain 2022; 22:436-444. [PMID: 35297228 DOI: 10.1515/sjpain-2021-0158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 02/17/2022] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Patients with haemophilia (PwH) often suffer from joint pain due to repetitive haemarthroses and resulting arthropathy. Literature focuses so far on pain causes, diagnosis or treatment. A summary of prevalence rates, providing facts on the absolute occurrence of pain, is not sufficiently described so far. This review aimed to explore and systematically review different pain conditions, focussing on prevalence rates of pain in adult PwH. METHODS A review of English articles using PubMed and Web of Science was conducted in February 2020. The search strategy included patients with haemophilia A or B suffering from pain. The articles were selected based on defined PICOS-selection criteria. RESULTS Out of 606 identified articles, 13 studies matched the given eligibility criteria and indicated pain prevalence rates. The weighted mean (WM) for the prevalence rate (varying timeframes) for chronic pain was 40% whereas for point prevalence the rate was WM=75%. Regarding pain intensity, findings of the EQ-5D-3L revealed moderate pain to be more present (61.0%) compared to extreme (11.6%). The main problem was the inconsistency of the definition of both acute and chronic pain as well as for prevalence types. CONCLUSIONS Pain is a major problem in patients with haemophilia. Pain therapy should be carried out taking into account the difference between bleeding-related or arthropathy-related causes of pain. In addition, the intensity and duration of pain should be recorded consistently to better monitor therapy and allow comparison with existing data.
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Affiliation(s)
- Pia Ransmann
- Department of Sports Medicine, University of Wuppertal, Wuppertal, Germany
| | - Steffen Krüger
- Department of Sports Medicine, University of Wuppertal, Wuppertal, Germany
| | - Thomas Hilberg
- Department of Sports Medicine, University of Wuppertal, Wuppertal, Germany
| | - Thorsten Hagedorn
- Department of Sports Medicine, University of Wuppertal, Wuppertal, Germany
| | - Nathalie Roussel
- Department of Rehabilitation Science and Physiotherapy (MOVANT), University of Antwerp, Wilrijk, Belgium
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7
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Cuesta-Barriuso R, Pérez-Llanes R, Donoso-Úbeda E, Ucero-Lozano R. LongHest project: A prospective, observational study of extended half-life treatment in the musculoskeletal health of patients with severe haemophilia A. Haemophilia 2022; 28:857-864. [PMID: 35561281 PMCID: PMC9541876 DOI: 10.1111/hae.14592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 04/21/2022] [Accepted: 05/02/2022] [Indexed: 11/29/2022]
Abstract
Background Prophylactic treatment is the gold standard in the treatment of patients with haemophilia. Prophylaxis with extended half‐life (EHL) treatment has shown long‐term safety and efficacy in patients with haemophilia. Aim To evaluate the efficacy of prophylaxis with EHL treatment in the frequency of haemarthrosis and musculoskeletal health in adult patients with severe haemophilia A. Methods Prospective cohort study. Forty‐six patients with severe haemophilia A were recruited. The frequency of haemarthrosis (self‐reports), joint condition (Haemophilia Joint Health Score), pain intensity (visual analogue scale), range of motion (goniometry), and strength (dynamometry) and muscle activation (surface electromyography) were evaluated. Three assessments were carried out: at baseline (T0), at 6 months (T1) and at 12 months following treatment (T2). Results There were significant changes in the within‐subject effect in the frequency of haemarthrosis in elbow (F(1.05;96.20) = 3.95; P < .001) and knee (F(1.73;157.99) = 9.96; P < .001). Significant within‐subject effect in elbow pain intensity (F(2;182) = 63.51; P < .001) was found. The mean values of the frequency haemarthrosis in elbow (from .66±1.01 to .04±.20) and knees (from .55±.68 to .33±.53) decrease after the period study. The intensity of elbow pain and (from 3.08±1.69 to 2.67±1.73), decrease after the 12‐month follow‐up period. Conclusions Prophylaxis with extended half‐life treatment reduces the frequency of haemarthrosis in elbow and knee in adult patients with haemophilia. EHL treatment reduces the intensity of elbow pain in patients with haemophilic arthropathy.
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Affiliation(s)
- Rubén Cuesta-Barriuso
- Department of Surgery and Medical-Surgical Specialties, Faculty of Medicine, University of Oviedo, Oviedo, Spain.,Royal Victoria Eugenia Foundation, Madrid, Spain
| | - Raúl Pérez-Llanes
- Department of Physiotherapy, Catholic University San Antonio-UCAM, Murcia, Spain
| | - Elena Donoso-Úbeda
- Department of Physiotherapy, Catholic University San Antonio-UCAM, Murcia, Spain
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Chen YC, Chang CY, Cheng SN, Pan RY, Shih YL, Li TY, Wang SH. Evolution of congenital haemophilia care in Taiwan. J Formos Med Assoc 2021; 121:582-591. [PMID: 34362614 DOI: 10.1016/j.jfma.2021.07.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 07/04/2021] [Accepted: 07/15/2021] [Indexed: 10/20/2022] Open
Abstract
Haemophilia care in Taiwan has come a long way over the past 35 years, from the absence of specialised haemophilia treatment centres before 1984 to the establishment of treatment centers in the majority of medical centers, the listing of haemophilia as a catastrophic illness with full treatment reimbursement by the Taiwan National Health Insurance (NHI), and the implementation of full NHI coverage for prophylaxis therapy. This has led to outcome improvements such as reduced bleed-related morbidity and mortality, fewer viral infections, and enhanced overall multi-modality care. Most people with haemophilia (PWH) are now able to live normal, active lives. Early diagnosis has improved through increased awareness, physician education, and prenatal diagnosis; while comprehensive care, including state of the art rehabilitation and orthopaedic management for haemophilic arthropathy, eradication therapy for chronic hepatitis C, and better treatments for human immunodeficiency virus, allows PWH to enjoy a better quality of life and improved survival. Efforts are now being made to raise prophylaxis rates through full NHI reimbursement and the use of extended half-life recombinant factor products. Overall, Taiwan has made great strides in haemophilia care and we would like to share these experiences for the benefit of all healthcare providers involved in haemophilia care.
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Affiliation(s)
- Yeu-Chin Chen
- Division of Hematology/Oncology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan; Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan.
| | - Chia-Yau Chang
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Hemophilia Center, Division of Pediatric Hematology/Oncology, Department of Pediatrics, Taipei Medical University Hospital, Taipei, Taiwan
| | - Shin-Nan Cheng
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan; Tungs' Taichung MetroHarbor Hospital, Department of Pediatrics, Taichung, Taiwan
| | - Ru-Yu Pan
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan; Department of Orthopedics, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Yu-Lueng Shih
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan; Division of Gastroenterology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Tsung-Ying Li
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan; Department of Rehabilitation, Tri-Service General Hospital, National Defence Medical Center, Taipei, Taiwan
| | - Sheng-Hao Wang
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan; Department of Orthopedics, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
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Saultier P, Guillaume Y, Demiguel V, Berger C, Borel-Derlon A, Claeyssens S, Harroche A, Oudot C, Rafowicz A, Trossaert M, Wibaut B, Vinciguerra C, Boucekine M, Baumstarck K, Meunier S, Calvez T, Chambost H. Compliance with Early Long-Term Prophylaxis Guidelines for Severe Hemophilia A. J Pediatr 2021; 234:212-219.e3. [PMID: 33676933 DOI: 10.1016/j.jpeds.2021.02.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 01/10/2021] [Accepted: 02/26/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVES To evaluate the applicability and compliance with guidelines for early initiation of long-term prophylaxis in infants with severe hemophilia A and to identify factors associated with guideline compliance. STUDY DESIGN This real-world, prospective, multicenter, population-based FranceCoag study included almost all French boys with severe hemophilia A, born between 2000 and 2009 (ie, after guideline implementation). RESULTS We included 333 boys in the study cohort. The cumulative incidence of long-term prophylaxis use was 61.2% at 3 years of age vs 9.5% in a historical cohort of 39 boys born in 1996 (ie, before guideline implementation). The guidelines were not applicable in 23.1% of patients due to an early intracranial bleeding or inhibitor development. Long-term prophylaxis was delayed in 10.8% of patients. In the multivariate analysis, 2 variables were significantly associated with "timely long-term prophylaxis" as compared with "delayed long-term prophylaxis": hemophilia treating center location in the southern regions of France (OR 23.6, 95% CI 1.9-286.7, P = .013 vs Paris area) and older age at long-term prophylaxis indication (OR 7.2 for each additional year, 95% CI 1.2-43.2, P = .031). Long-term prophylaxis anticipation was observed in 39.0% of patients. Earlier birth year (OR 0.5, 95% CI 0.3-0.8, P = .010 for birth years 2005-2009 vs 2000-2004) and age at first factor replacement (OR 1.9 for each additional year, 95% CI 1.2-3.0, P = .005) were significantly associated with "long-term prophylaxis guideline compliance" vs "long-term prophylaxis anticipation." CONCLUSIONS This study suggests that long-term prophylaxis guidelines are associated with increased long-term prophylaxis use. However, early initiation of long-term prophylaxis remains a challenge.
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Affiliation(s)
- Paul Saultier
- APHM, La Timone Children's Hospital, Department of Pediatric Hematology, Immunology and Oncology, Marseille, France; Aix Marseille Univ, INSERM, INRAe, C2VN, Marseille, France.
| | - Yves Guillaume
- APHM, La Timone Children's Hospital, Department of Pediatric Hematology, Immunology and Oncology, Marseille, France
| | - Virginie Demiguel
- Santé Publique France, French National Public Health Agency, Saint-Maurice, France
| | - Claire Berger
- Saint-Etienne University Hospital, Hematology and Oncology Pediatric Unit, Saint Etienne, France
| | - Annie Borel-Derlon
- La Côte de Nacre University Hospital, Center for Bleeding Disorders, Caen, France
| | | | - Annie Harroche
- AP-HP, Necker University Hospital, Center for Bleeding Disorders, Paris, France
| | - Caroline Oudot
- Limoges University Hospital, Hematology and Oncology Pediatric Unit, Limoges, France
| | - Anne Rafowicz
- AP-HP, Bicêtre University Hospital, Center for Bleeding Disorders, Le Kremlin Bicêtre, France
| | - Marc Trossaert
- Nantes University Hospital, Center for Bleeding Disorders, Nantes, France
| | - Bénédicte Wibaut
- Lille 2 University Hospital, Center for Bleeding Disorders, Lille, France
| | - Christine Vinciguerra
- Hospices Civils de Lyon, Service d'Hématologie Biologique, Centre de Biologie et Pathologie Est, Bron, France; Université Claude Bernard Lyon 1, Univ Lyon, EA 4609 Hémostase et Cancer, Lyon, France
| | - Mohamed Boucekine
- Aix-Marseille Univ, EA 3279, Self-perceived Health Assessment Research Unit, School of Medicine, Marseille, France
| | - Karine Baumstarck
- Aix-Marseille Univ, EA 3279, Self-perceived Health Assessment Research Unit, School of Medicine, Marseille, France
| | - Sandrine Meunier
- Hospices Civils de Lyon, Lyon University Hospital, Center for Bleeding Disorders, Lyon, France
| | - Thierry Calvez
- Sorbonne Université, INSERM, Institut Pierre Louis d'Épidémiologie et de Santé Publique, Paris, France
| | - Hervé Chambost
- APHM, La Timone Children's Hospital, Department of Pediatric Hematology, Immunology and Oncology, Marseille, France; Aix Marseille Univ, INSERM, INRAe, C2VN, Marseille, France
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Lassandro G, Amoruso A, Palladino V, Palmieri VV, Giordano P. The risk of venipuncture in newborn with severe hemophilia: Case report of a large elbow hemorrhage and literature review of compartment syndrome. Hematol Rep 2021; 13:8967. [PMID: 34221293 PMCID: PMC8215530 DOI: 10.4081/hr.2021.8967] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Accepted: 02/26/2021] [Indexed: 12/20/2022] Open
Abstract
Hemophilias are hemorrhagic congenital rare diseases. The gold standard of therapy in hemophilics is the intravenously replacement therapy. We can infuse intravenously plasma derived factors (FVIII for Hemophilia A and FIX for Hemophilia B) or recombinant products (i.e. clotting factor synthetically produced). Venipuncture is not a safe procedure in subjects with hemorrhagic diseases. It is considered an invasive technique with potential massive bleeding and it requires standardized procedures to prevent complications. Local pressure after the procedure (with eventually ice rest) must be always done. In case of bleeding a rapid replacement therapy must be conducted. A severe complication in hemophilia is compartment syndrome. We report a case of massive bleeding in a hemophilic newborn after venipuncture and a literature review of compartment syndrome in hemophiliacs. The aim of this paper is to help physicians in the clinical management to prevent the evolution of a massive bleeding in compartment syndrome.
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Affiliation(s)
| | | | | | | | - Paola Giordano
- Pediatric Section, Department of Biomedical Science and Human Oncology, University “Aldo Moro”, Bari, Italy
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11
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Costs of the management of hemophilia A with inhibitors in Spain. GLOBAL & REGIONAL HEALTH TECHNOLOGY ASSESSMENT 2021; 8:35-42. [PMID: 36627877 PMCID: PMC9616192 DOI: 10.33393/grhta.2021.2234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 02/24/2021] [Indexed: 01/13/2023] Open
Abstract
Introduction Emicizumab is a first-in-class monoclonal antibody, recently authorized for the treatment of hemophilia A with inhibitors. This study aims to estimate the direct and indirect costs of the management of hemophilia A with inhibitors, in adult and pediatric patients, including the prophylaxis with emicizumab. Methods We calculated the costs of the on-demand and prophylactic treatments with bypassing agents (activated prothrombin complex concentrate and recombinant activated factor VII) and the emicizumab prophylaxis, from the societal perspective, over 1 year. The study considered direct healthcare costs (drugs, visits, tests, and hospitalizations), direct non-healthcare costs (informal caregivers), and indirect costs (productivity loss). Data were obtained from a literature review and were validated by an expert group. Costs were expressed in 2019 euros. Results Our results showed that the annual costs of the prophylactic treatment per patient varied between €543,062.99 and €821,415.77 for adults, and €182,764.43 and €319,826.59 for children, while on-demand treatment was €532,706.84 and €789,341.91 in adults, and €167,523.05 and €238,304.71 in pediatric patients. In relation to other prophylactic therapies, emicizumab showed the lowest costs, with up to a 34% and 43% reduction in the management cost of adult and pediatric patients, respectively. It reduced the bleeding events and administration costs, as this drug is less frequently administered by subcutaneous route. Emicizumab prophylaxis also decreased the cost of other healthcare resources such as visits, tests, and hospitalizations, as well as indirect costs. Conclusion In comparison to prophylaxis with bypassing agents, emicizumab reduced direct and indirect costs, resulting in cost savings for the National Health System and society.
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12
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Hsieh MHC, Chiou SS, Liao TC, Kao Yang YH, Lai ECC. Trends in coagulation factor replacement therapy and medical costs in patients with haemophilia in Taiwan: A population-based, 15-year analysis. Haemophilia 2021; 27:e187-e193. [PMID: 33550710 DOI: 10.1111/hae.14250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 12/18/2020] [Accepted: 12/28/2020] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Taiwan's National Health Insurance Program approved reimbursement of prophylactic coagulation factor replacement therapy (CFRT) for patients with haemophilia (PWH) in 2014. AIM To examine 15-year trends and the impact of reimbursement for prophylactic CFRT on its utilization and related medical costs for PWH. METHODS We analysed Taiwan's National Health Insurance Database from 2003 to 2017. We included patients with haemophilia A (PWHA) or B (PWHB) receiving coagulating factor. Female patients were excluded because of small sample size. We analysed annual consumption of CFRT units and medical costs. High proportion of days covered (PDC) with CFRT served as an indicator for prophylactic treatment since it reflects routine use of CFRT. We applied interrupted time series analysis (ITSA) to evaluate the impact of reimbursement for prophylactic CFRT on usage patterns and medical costs. RESULTS We included 896 male PWHA and 181 male PWHB, with 38.1% and 37.0% aged under 18 years, respectively. By ITSA, we found the trends in coagulation factor consumption and PDC significantly increased after reimbursement for prophylactic CFRT in both PWHA and PWHB (p values for trend change <0.05). The overall medical costs per patient increased with increasing consumption of coagulation factor; however, ITSA revealed non-CFRT cost decreased after reimbursement of prophylactic CFRT for both PWHA and PWHB (p values <.05). CONCLUSION Reimbursement for prophylactic CFRT facilitated growth in rates of prophylactic CFRT and increased related costs, but curbed rising non-CFRT costs. These findings provide strong grounds for future cost-effectiveness studies to leverage prophylactic CFRT for its therapeutic benefits.
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Affiliation(s)
- Miyuki Hsing-Chun Hsieh
- School of Pharmacy, Institute of Clinical Pharmacy and Pharmaceutical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Shyh-Shin Chiou
- Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Tzu-Chi Liao
- School of Pharmacy, Institute of Clinical Pharmacy and Pharmaceutical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yea-Huei Kao Yang
- School of Pharmacy, Institute of Clinical Pharmacy and Pharmaceutical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Health Outcome Research Center, National Cheng Kung University, Tainan, Taiwan
| | - Edward Chia-Cheng Lai
- School of Pharmacy, Institute of Clinical Pharmacy and Pharmaceutical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Health Outcome Research Center, National Cheng Kung University, Tainan, Taiwan.,Department of Pharmacy, National Cheng Kung University Hospital, Tainan, Taiwan
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13
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Alvis LF, Sánchez P, Acuña L, Escobar G, Linares A, Solano MH, Robledo S. National registry of haemophilia and other coagulopathies: A multisector initiative in the Colombian Health System. Haemophilia 2020; 26:e254-e261. [PMID: 32892485 DOI: 10.1111/hae.14138] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 08/06/2020] [Accepted: 08/07/2020] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Haemophilia is an orphan and high-cost disease worldwide and, especially in middle-income countries as Colombia. Given its burden of disease, in 2014, a national administrative registry was created to centralize demographic, clinical and economic information regarding to haemophilia and other coagulopathies. OBJECTIVE To describe the building and implementation processes of the Colombian registry of haemophilia and other coagulopathies. METHODS The 'consensus conference' methodology was used to design the registry. It was a multisector process, which included different actors of the health system (healthcare payers and providers, government institutions, academic and scientific organizations and patients). RESULTS Colombia's national registry includes 95 variables, grouped in four sections: (1) sociodemographic data, (2) clinical condition, (3) economic costs, and (4) administrative updates. According to a resolution, stated by the Ministry of Health, payers and providers of healthcare must report annually to the registry the information of new and existing patients with coagulopathies. CONCLUSIONS A national registry serves as an organized and interactive system for monitoring morbidity and mortality, assessing healthcare access and its impact on disease complications, as well as associated costs to medical assistance. Furthermore, registry information can guide a rational making decision process to use economic resources efficiently. On the other hand, data about orphan diseases can encourage health research and evidence-based care to improve quality of life and reduce associated disability.
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Affiliation(s)
- Luisa Fernanda Alvis
- Cuenta de Alto Costo, Fondo Colombiano de Enfermedades de Alto Costo, Bogotá, Colombia
| | - Patricia Sánchez
- Cuenta de Alto Costo, Fondo Colombiano de Enfermedades de Alto Costo, Bogotá, Colombia
| | - Lizbeth Acuña
- Cuenta de Alto Costo, Fondo Colombiano de Enfermedades de Alto Costo, Bogotá, Colombia
| | - Germán Escobar
- Oficina de Calidad, Ministerio de Salud y Protección Social, Bogotá, Colombia
| | - Adriana Linares
- Asociación Colombiana de Hematología y Oncología Pediátrica - ACHOP, Asociación Colombiana de Hematología y Oncología - ACHO, Universidad Nacional de Colombia, Bogotá, Colombia
| | - María Helena Solano
- Asociación Colombiana de Hematología y Oncología - ACHO, Fundación Universitaria Ciencias de la Salud - FUCS, Bogotá, Colombia
| | - Sergio Robledo
- Colhemofilicos: The Colombian League of Hemophilia and other Blood Deficiencies, Bogotá, Colombia
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14
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Strike K, Chan A, Iorio A, Maly MR, Stratford PW, Solomon P. Predictors of treatment adherence in patients with chronic disease using the Multidimensional Adherence Model: unique considerations for patients with haemophilia. ACTA ACUST UNITED AC 2020. [DOI: 10.17225/jhp00152] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Introduction
Adherence to treatment recommendations in patients with chronic disease is complex and is influenced by numerous factors. Haemophilia is a chronic disease with reported levels of adherence ranging from 17–82%.
Aim
Based on the theoretical foundation of the World Health Organization Multidimensional Adherence Model, the objective of this study was to identify the best combination of the variables infusion frequency, annualised bleed rate, age, distance to haemophilia treatment centre (HTC) and Haemophilia Joint Health Score (HJHS), to predict adherence to treatment recommendations in patients with haemophilia A and B on home infusion prophylaxis in Canada.
Methods
A one-year retrospective cohort study investigated adherence to treatment recommendations using two measures: 1) subjective report via home infusion diaries, and 2) objective report of inventory ordered from Canadian Blood Services. Stepwise regression was performed for both measures.
Results
Eighty-seven patients with haemophilia A and B, median age 21 years, were included. Adherence for both measures was 81% and 93% respectively. The sample consisted largely of patients performing an infusion frequency of every other day (34%). Median scores on the HJHS was 10.5; annualised bleed rate was two. Distance to the HTC was 51km. Analysis of the objective measure weakly supported greater infusion frequency as a treatment-related factor for the prediction of lower adherence, however the strength of this relationship was not clinically relevant (R2=0.048). For the subjective measure, none of the explanatory variables were significant.
Conclusion
Adherence is a multifaceted construct. Despite the use of theory, most of the variance in adherence to treatment recommendations in this sample of patients with haemophilia remains unknown. Further research on other potential predictors of adherence, and possible variables and relationships within factors of the MAM is required.
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Affiliation(s)
- Karen Strike
- School of Rehabilitation Science, Faculty of Health Science , McMaster University , Hamilton , Ontario , Canada
| | - Anthony Chan
- Department of Pediatrics , McMaster University , Hamilton , Ontario , Canada
| | - Alfonso Iorio
- Department of Health Research Methods, Evidence, and Impact (HEI) , McMaster University , Hamilton , Ontario , Canada
| | - Monica R. Maly
- School of Rehabilitation Science, Faculty of Health Science , McMaster University , Hamilton , Ontario ; Department of Kenesiology, Faculty of Applied Health Sciences , University of Waterloo , Waterloo , Canada
| | - Paul W. Stratford
- School of Rehabilitation Science, Faculty of Health Science , McMaster University , Hamilton , Ontario , Canada
| | - Patricia Solomon
- School of Rehabilitation Science, Faculty of Health Science , McMaster University , Hamilton , Ontario , Canada
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15
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Miesbach W, Kittler S, Bauhofer A, Königs C, Becker T, Nemes L, Staus A, Schüttrumpf J. Long-term analysis of the benefit of prophylaxis for adult patients with severe or moderate haemophilia A. Haemophilia 2020; 26:467-477. [PMID: 32293085 DOI: 10.1111/hae.13988] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 03/02/2020] [Accepted: 03/16/2020] [Indexed: 12/30/2022]
Abstract
INTRODUCTION Prophylaxis with factor VIII (FVIII) concentrates in children with haemophilia A (HA) is current standard of care. The benefit of prophylactic treatment for adult HA patients is not commonly accepted. AIM To investigate the benefit of prophylaxis over on-demand treatment in adult and elderly patients with severe or non-severe HA in a real-life setting. METHODS Data from 163 patients comprising 1202 patient-years were evaluated for 7.5 (±5.3) years. The effects on the annual bleeding rate (ABR, including spontaneous and traumatic bleeds) of treatment with a plasma-derived FVIII concentrate, the patient's age and disease severity were investigated. The effect of changing the treatment from on demand to continuous prophylaxis on the patients' ABRs was further analysed. RESULTS Prophylaxis had the greatest effect on the ABRs of patients of any age with severe or non-severe HA. The difference in ABR of all patients treated on demand (median 31.4; interquartile range (IQR) 27.6; N = 83) compared with those treated prophylactically (median 1.3; IQR 3.6; N = 122) was statistically significant (P < .05), even for patients with non-severe HA (median 8.4; IQR 15.5; N = 11) vs median 1.5; IQR 4.2 (N = 17), P < .05). Patients, aged up to 88 years, switching from on demand to continuous prophylaxis showed the lowest median ABR (1.1; N = 51) after their regimen change. CONCLUSION Any (even low-frequency) prophylaxis results in lower ABR than on-demand treatment. Patients switching to prophylaxis benefitted the most, irrespective of age or HA severity. Prophylactic treatment-even tertiary-is the regimen of choice for patients of any age, including elderly patients, with severe or non-severe HA.
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Affiliation(s)
- Wolfgang Miesbach
- Haemophilia Centre, Medical Clinic 2, Institute of Transfusion Medicine, University Hospital Frankfurt, Frankfurt/Main, Germany
| | | | | | - Christoph Königs
- Haemophilia Centre, Department of Paediatrics, University Hospital Frankfurt, Goethe University, Frankfurt/Main, Germany
| | | | - László Nemes
- National Haemophilia Centre and Haemostasis Department, Medical Centre, Hungarian Defence Forces, Budapest, Hungary
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Nolan B, Mahlangu J, Pabinger I, Young G, Konkle BA, Barnes C, Nogami K, Santagostino E, Pasi KJ, Khoo L, Winding B, Yuan H, Fruebis J, Rudin D, Oldenburg J. Recombinant factor VIII Fc fusion protein for the treatment of severe haemophilia A: Final results from the ASPIRE extension study. Haemophilia 2020; 26:494-502. [PMID: 32227570 PMCID: PMC7384031 DOI: 10.1111/hae.13953] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 01/24/2020] [Accepted: 02/12/2020] [Indexed: 12/28/2022]
Abstract
Introduction The efficacy and safety of recombinant factor VIII Fc fusion protein (rFVIIIFc) as an extended half‐life treatment for severe haemophilia A were demonstrated in the Phase 3 A‐LONG and Kids A‐LONG studies. Eligible subjects who completed A‐LONG and Kids A‐LONG could enrol in ASPIRE (NCT01454739), an open‐label extension study. Aim To report the long‐term safety and efficacy of rFVIIIFc in subjects with severe haemophilia A who enrolled in ASPIRE. Methods Previously treated subjects received one or more of the following regimens: individualized prophylaxis (IP), weekly prophylaxis, modified prophylaxis or episodic treatment. Subjects could switch treatment regimen at any time. The primary endpoint was inhibitor development. Results A total of 150 subjects from A‐LONG and 61 subjects from Kids A‐LONG enrolled in ASPIRE. Most subjects received the IP regimen (A‐LONG: n = 110; Kids A‐LONG: n = 59). Median (range) treatment duration in ASPIRE for subjects from A‐LONG and Kids A‐LONG was 3.9 (0.1‐5.3) years and 3.2 (0.3‐3.9) years, respectively. No inhibitors were observed (0 per 1000 subject‐years; 95% confidence interval, 0‐5.2) and the overall rFVIIIFc safety profile was consistent with prior studies. For subjects on the IP regimen, annualized bleed rates (ABR) remained low (median overall ABR for adults and adolescents was <1.0) and extended‐dosing intervals were maintained (median of 3.5 days) for the majority of subjects in ASPIRE. Conclusion ASPIRE results, which include up to 5 years of follow‐up data, confirm earlier reports on the consistent and well‐characterized safety and efficacy of rFVIIIFc treatment for severe haemophilia A.
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Affiliation(s)
| | - Johnny Mahlangu
- Haemophilia Comprehensive Care Centre, Faculty of Health Sciences, Charlotte Maxeke Johannesburg Academic Hospital and NHLS, University of Witwatersrand, Johannesburg, South Africa
| | | | - Guy Young
- Children's Hospital Los Angeles, Los Angeles, CA, USA.,University of Southern California Keck School of Medicine, Los Angeles, CA, USA
| | | | - Chris Barnes
- The Royal Children's Hospital, Parkville, Vic., Australia
| | | | - Elena Santagostino
- Angelo Bianchi Bonomi Hemophilia and Thrombosis Centre, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - K John Pasi
- Royal London Haemophilia Centre, Barts and The London School of Medicine and Dentistry, London, UK
| | - Liane Khoo
- Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | | | | | | | - Dan Rudin
- Bioverativ, a Sanofi company, Waltham, MA, USA
| | - Johannes Oldenburg
- Institute of Experimental Haematology and Transfusion Medicine, University Clinic Bonn, Bonn, Germany
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Abstract
INTRODUCTION The development of new biologic agents able to restore thrombin generation has become the focus of innovation in hemophilia management. There is growing interest in the proposal of novel, non-replacement therapy with alternative mechanisms of action and route of administration, hoping to solve still unmet needs in treatment of hemophilic patients with or without inhibitors. AREAS COVERED The review describes the new molecules, in particular the bi-specific antibody mimicking the coagulation function of FVIII and/or those which work by inhibiting the natural anticoagulants, their mechanism of action and the results of ongoing clinical trials. EXPERT OPINION Exciting results in enhancing the protection against bleeding and improving quality of life are emerging from clinical trials. However, these molecules with their mechanisms of action also open new problems. Treatment of bleeding and management of surgery in subjects with a rebalanced hemostasis may be difficult, especially for the lack of laboratory tests perfectly reflecting the in vivo coagulation status. A careful surveillance is required to evaluate the risk of thrombotic complication in patients with rebalanced hemostasis, in addition to understand whether these new products offer the same protection on joints as regular prophylaxis with the missing clotting factors.
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Affiliation(s)
- Giancarlo Castaman
- a Center for Bleeding Disorders and Coagulation, Department of Oncology , Careggi University Hospital , Florence , Italy
| | - Silvia Linari
- a Center for Bleeding Disorders and Coagulation, Department of Oncology , Careggi University Hospital , Florence , Italy
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